Ключевые слова: a calculator, abacus, accounting, analog, analog calculator, antique, asia, asian, background, black, brown, business, calculation, calculator, chinese, closeup, color, count, economy, education, finance, home, hong kong, horizontal, image, isolated, japan, korea, macro, math, mathematical, mathematics, nobody, object, office, old, retro, revival, school, single, symbol, taiwan, tool, view, vintage, wood, wooden, work,